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With the development of China’s economy, people’srequirements for water quality are getting higher and higher. In orderto protect water resources, we need to do a good job of water qualitymonitoring, real-time monitoring of water quality indicators, timelyfind the trend of water quality changes, and analysis and prediction.The accurate determination of the permanganate index $\left({\mathrm{{COD}}}_{\mathrm{{Mn}}}\right)$ ,as a key indicator for evaluating the degree of pollution by organicmatter and reductive inorganic matter in water bodies, is of greatsignificance. The purpose of this paper is to discuss the qualitycontrol methods during the determination of permanganate index in waterin order to improve the accuracy and reliability of the results.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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